Finding the Fourth Proportional to 1,742.55, 2,405.18 and 1,079.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.55 : 2,405.18 = 1,079.02 : x
2. Step 2: Convert to fraction form
   1,742.55/2,405.18 = 1,079.02/x
3. Step 3: Cross multiply
   1,742.55x = 2,405.18 × 1,079.02
4. Step 4: Simplify right side
   1,742.55x = 2,595,243.03
5. Step 5: Solve for x
   x = 2,595,243.03/1,742.55
6. Step 6: Final answer
   x = 1,489.34